23. 'Yellow Submarine' (1968)

Few animated movies are more synonymous with "turn off your mind, relax and float downstream" vibe than this psychedelic late-Sixties Beatles odyssey, in which John, Paul, Ringo and George must rescue an underwater utopia from the fun-killing Blue Meanies. Sure, the Fab Four might not have actually provided their own speaking voices, but George Dunning's hallucinatory animation paired with some of their trippiest music makes for a memorable Pop-Art ride all the same. Yellow Submarine's popular success demonstrated to the mainstream that there were more ways than the Disney mode to pull off feature-length cartoons. JS